Yeah, thanks for checking.  I placed the order and paid with my Payoneer debit card.  I received an order confirmation, then nothing. I called Dell and it turns out they would not accept the card because although it is denominated in USD it was issued by a UK company and they would not accept it for payment in the USA - which was the sort of crap that I wanted to avoid by paying with bitcoin in the first place.  Dell never contacted me in any way to inform me that there was a problem - it was up to me to check the order status and question why it was not being shipped.

So I went back and placed a new order, but this time using a different browser and this time the bitcoin payment worked beautifully.  For the record I had the problem using Chrome and I later placed the successful order using IE.

In brief:  bitcoin great, Dell customer service crap!